Er
Erbium is a Lanthanides element with the symbol Er and atomic number 68. Located in period 6 (f-block), it has an atomic weight of 167.26 u and is classified as a solid at standard temperature and pressure. First identified in 1843 by Carl Gustaf Mosander in Sweden. Erbium has an electron configuration of [Xe] 4f¹² 6s² with 6 electron shells containing 2, 8, 18, 30, 8, 2 electrons respectively. It is commonly used in: fiber optic amplifiers, pink glass, lasers.
铒是一种镧系元素元素,符号为Er,原子序数为68。位于第6周期(f区),原子量为167.26 u,在标准温度和压力下为固体。于1843 年首次被确认,由Carl Gustaf Mosander发现。铒的电子排布为[Xe] 4f¹² 6s²,具有6个电子层,分别含有2、8、18、30、8、2个电子。常见用途包括:光纤放大器,粉色玻璃,激光。
Basic Properties基本属性
- Atomic Number原子序数
- 68
- Atomic Weight原子量
- 167.26 u
- Category分类
- Lanthanides镧系元素
- State at STP标准状态
- Solid固体
- Period周期
- 6
- Group族
- —
- Block区
- f-blockf区
Physical Properties物理性质
- Melting Point熔点
- +1529°C
- Boiling Point沸点
- +2868°C
- Density密度
- 9.07 g/cm³
- Crystal Structure晶体结构
- Hexagonal Close-Packed (HCP)六方密堆积
- Atomic Radius原子半径
- 176 pm
- Ionic Radius离子半径
- 89 pm
- Electronegativity电负性
- 1.24
Electron Configuration电子排布
- Config电子构型
- [Xe] 4f¹² 6s²
- Shells电子层
- 2, 8, 18, 30, 8, 2
- Oxidation States氧化态
- +3
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18431843 年
- Discoverer发现者
- Carl Gustaf Mosander
- Country国家
- Sweden瑞典
Uses & Applications用途
Fiber optic amplifiers, pink glass, lasers
光纤放大器,粉色玻璃,激光
Common Compounds常见化合物
—
—
Room Temperature常温特性
silvery white
银白色
Did You Know? 你知道吗?
The name Erbium comes from Er and it was first identified in 1843.
铒的名称来源于其符号Er,于1843年首次被确认。
Memory Aid记忆口诀
Amplifies light in fiber optics
光纤放大器的核心
Appearance外观
silvery white
银白色
Safety Information安全须知
- Handle with standard laboratory precautions. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.
- 按照标准实验室预防措施处理。详细操作说明请参阅安全数据表(SDS)。